Engine.



M. C. COSGRAY.

ENGWE.

APPLICATIGN man JULY 25 me.

Patented Apr. 8,1919.

2 SHEETS-SHEET I.

VENTOTZ QWhM-QW' M. C. COSGBAY.

mama.

APPLICATION HLEQ JULY 26. HHS. 1,299,555 Patented Apr. 8, 1919.

2 SHEETS-SHEET 2.

-INYENTOR- UNITED STATES PATENT OFFICE.

MARK C. GOSH-RAY, 0F SANDUSKY, OHIO, ASSIGNOR TO THE MATHEWS ENGINEERING COMPANY, OF SANDUSKY, OHIO,

A CORPORATION OF OHIO.

. ENGINE.

Application filed July 26,1918. Serial No. 246,944.

To all whom if TIHII/ romw'u Be it known that l. il'lARK tosumr, a citizen of the United States. and a resident of Sandusky, in the county of Erie and State of Ohio, have invented a certain new and useful Engine: and I do hereby declare the following to be a full. clear. and exact description of the invention, such as ill enable others skilled in themrt to which it appertains to make and use the same. reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

y invention relates to engines and it for its object to provide an efficicnt engine wherciuthe parts may be readily assembled and disassembled for purposes of repair and replacement. It also has for its object to provide certain features and advantages that will appear in the description hereinafter. Features involving the use of my invention may be used in different forms of engines.

' I have selected one form of engine as illustrative of engines embodying the use of my invention and shall describe it hereinafter. The engine selected is illustrated in the ac companying drawings.

Figure 1 of the drawings is a longitudinal sectional View of the engine, Fig. 2 is a transverse sectional view thereof.

1 is the crank case which is closed by large end plates? and 3 by means of the screw bolts 4. The plates 2 and 3 have the bearings 5 and 6 in which is located. the crank shaft 7. The. plates 2 and,3 being large, the crank shaft and the parts connected thereto may be readily removed from the interior of the casing 1.

8 is the piston rod which is connected to the piston 9 and to the crank pin of the crank shaft 7 in the manner Well known in the art. The crank is provided with arcuate counterweights 10. worm wheel 11 is secured to the crank shaft and a worm wheel 12 secured to the cam shaft 13 which is operated by the worm Wheel 11. The axis of the crank shaft and the cam shaft are thus placed at an angle of 90 to each other. The (am shaft is supported in the bearings 53 seemed to the top or cover 24 01 the casing. To the cam shaft 13 is connected by means of the coupler 14 an extension 15 having bearings-49 formed in a plate 16 which is bolted to the casing 1 by memo of Specification ct Letters Patent.

Patented Apr. 8, 1919.

the bolts 17. The parts of the coupling 14 may be readily separated by merely removing the plate 10. The timer 46 is connected to the extension 15 and consequently the timer and its supporting shaft may be readily removed from the engine. Opposite the other end of the cam shaft 13 is located a plate 19 that is secured in position by the removable bridge 20, the bolt and nut 21. This forms a cover for a. large opening, whereby free access is made to the bearings of the cam shaft 1 The cams 22 of the cam shaft 13 operate the spring pressed valve studs 23 which are located in bosses formed in the cover plate 24 of the casing 1. The studs 23 are provided with slots into which extend the ends of screws 25 which operate to keep the studs from turning. The studs thus may be readily removed by unbolting the bolts 18 and lifting oil the cover plate. This will also remove the cum shaft 13 and its cams, whereby the cam shaft mechanism may be readily removed from the casing and from the engine. Valve rods 26 are spring pressed by the springs 27 against the bottom of sockets formed in the upper ends of the studs 23. The valves 28 operate to open and close the inlet and exhaust ports of the engine in the manner well known in the art. Into the part of the wall located above the valves are threaded caps or plugs 29 having flanges 30 that extend upward from the bottom of the caps 29 and so as to form sockets 31. The upper edges of the flanges 30 are castellated in order that the threaded plugs may be inserted into or removed from the engine. In the bottom of the plug 30 is formed a threaded opening into which may be threaded either the ignition plug 32 or the plug 33. One is insorted over the valve for opening and closing the exhaust port and the other over the valve for oontro ling the inlet.

The carburetor 34 is connected by means of a suitable connecting ipe 85 with the inlet port of the engine. is is located on same Side. of the engine that the timer is located on. the engine may pipe connected be ormnected with a. suitable with the threaded boss 36 that opens in the direction of the shaft of While the exhaust port of y also provided with channels Tubes 44; extend from the bottom channels 40 to the bottom of the case 1 and.

the splash pin 39 which is secured to the piston rod 8. In order to reduce the amount of. the splash and give strength to the m 39, it may be rovided with a rectang at cross section, t e longer arallel sides of the rectangle being loca parallel to the plane of movement of the up ash pm.-

; -o prevent the oil from wor the crank shaft 7, the plates 2 an 3 are rovided with channels 40 and the shaft 7 1s frovided with channels -11 that register wit the channels 40. The bosses in located suitable washers 43. The oilrlworks into and through the bearing and finally into the lower-part :of the channel; i o .t

along allow theoil to flow to the bottom of the case 1. An oil age 45 may be connected to the bottom of tlIe case 1.

A fiy-wheel '50 me. be connected to the shaft 7 and a suitab e driving clutch may coact with the clutch member 51 for startin the engine.

0 adjust the timer, 9, rod 47 me be connected at one end to the timer shel and adjustab secured in a bracket 52 at the other end. tation of the shell of the timer will vary the ignition times.v Adjustment is secured by securin the rod in the proper position in the bran et 52. The plate 16 beinq securedto the cover plate 24, the timer and cam shaft and their parts may be all removed together fromthe engine by removing the plates 16 and 24 together.

1. In an engine, a crank shaft casing, end plates closing the crank shaft casing, crank shaft bearings formed on the inner sides of top of t e casing the end lates, a cover plate for closing the and cam shaft bearings located on the inner side of the cover plate.

2. In an engine, a crank shaft casing, a cam shaft, a cover plate for closing the top of the casin and havin cam shaft bearings located on t e inner si e of the cover late, a timer shaft removahly connected witli the cam shaft, a plate havi a bearing formed on the inner side thereo the said plate for closing an opening for receiving the bearing of the timer shaft.

8. In an engine, a crank shaft casing, end plates for closing the ends of the crank shaft casing and havin bearings formed on the inner side thereof, a cam shaft and valve studs, cam shaft and the valve studs formed on the inner side of the cover plate, a timer shaft connected to the cam shaft, a plate having a. bearing;.-for the timer shaft and for closing an o in the crank shaft casing for receiving the timer shaft bearing.

4. In an engine, a crank shaft casing, end plates for closing the ends of the crank shaft casing and havln bearings formed on the inner side thereo a cam shaft and valve studs, a cover. late having bearings for the cam shaft an the valve studs formed on the inner side of the cover plate, a timer shaft connected to the cam shaft, a plate having. a5hearing for the timer shaft and for closing aniopemn in the crank shaft casing for receiving the timer shaft bearing, worm gear wheels for connecting the crank shaft with the cam shaft and the timer shaft.

In testimony whereof, I have hereunto signed my name to this specification.

MARK (l. COSGRAY.

a cover plate having bearings for the 

